1. Maple Tap Sanitation Research 2010
Stephen Childs
NYS Maple Specialist

2. Vacuum Results 2010

4. Average
Increase 151%

7. Average
Increase 151%

8. Average
Increase 114%

11. Average
Increase 114%

14. Average
Increase 38%

15. Cost Evaluation
New check valve sap yield – 15.6 gallons of sap = .36 gallons of syrup or $18.14 at $50 per gallon of syrup
2nd year check valve sap yield – 10.8 gallons = .25 gallons of syrup or $12.33 at $50 per gallon of syrup
$ $12.33 = $5.81 gross return
Investment $.35

16. Cost Evaluation
New check valve sap yield – 15.6 gallons of sap = .36 gallons of syrup or $18.14 at $50 per gallon of syrup
Old tap and drop sap yield – 7.9 gallons = .18 gallons of syrup or $9.18 at $50 per gallon of syrup
$ $9.18 = $8.96 gross return
Investment $.35

19. Increase of 67%

21. 16% increase

22. Averaged 7.9 gallons per tap on old tap and drop reps

24. Average 84%
Increase in sap yield

28. Gravity System Research Results
For sanitation practices compared the difference between a sanitation spout on a new vs. an old drop line.

33. 18% increase

34. 17% increase

37. 13% Difference

39. 76% increase

42. Gravity vs. Vacuum Gravity Vacuum
Two woods within sight of each other. This woods is ~50’ higher elevation
East orientation
Average larger trees than where vacuum is
Reps can be fairly flat to very steep
North orientation
Used vacuum booster canisters for measurement
Averaged ~15” vacuum
Vacuum runs 24-7 but with many service interruptions and at each measurement